Oversize frame issues



  • hey all-

    i'm using pfsense BETA4 on a soekris box to redirect packets from the WAN to an internal FBSD 5.4 server. Sicne the cutover to pfsense, I've noticed an endless stream of:

    frizzle kernel: em0: discard oversize frame (ether type 800 flags 3 len 1514 > max 1506)
    frizzle kernel: em0: discard oversize frame (ether type 800 flags 3 len 1514 > max 1506)
    frizzle kernel: em0: discard oversize frame (ether type 800 flags 3 len 1514 > max 1506)

    on my FBSD machine. Can I/Do I need to massage the MTUs in pfsense to fix this?

    d.



  • You may want to track down the box that is spewing the large packets and change the mtu down to 1500.



  • is there a way to change the MTU of the interface in pfsense?



  • On all interfaces except LAN.  And even then I think it only kicks in if an optional interface is a WAN interface.


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